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stylo: Clamp Au on accumulation

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Manish Goregaokar 2017-09-06 14:19:10 -07:00 • committed by Manish Goregaokar
parent 5e321cadf3
commit c063ff88de
2 changed files with 5 additions and 9 deletions
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2
components/style/values/animated/mod.rs
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@ -162,7 +162,7 @@ where
impl Animate for Au {
#[inline]
fn animate(&self, other: &Self, procedure: Procedure) -> Result<Self, ()> {
Ok(Au(self.0.animate(&other.0, procedure)?))
Ok(Au::new(self.0.animate(&other.0, procedure)?))
}
}

12
components/style/values/specified/length.rs
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@ -6,7 +6,7 @@
//!
//! [length]: https://drafts.csswg.org/css-values/#lengths
use app_units::Au;
use app_units::{Au, MAX_AU, MIN_AU};
use cssparser::{Parser, Token, BasicParseError};
use euclid::Size2D;
use font_metrics::FontMetricsQueryResult;
@ -236,16 +236,12 @@ impl CharacterWidth {
}
}
/// Same as Gecko
const ABSOLUTE_LENGTH_MAX: i32 = (1 << 30);
const ABSOLUTE_LENGTH_MIN: i32 = - (1 << 30);
/// Helper to convert a floating point length to application units
fn to_au_round(length: CSSFloat, au_per_unit: CSSFloat) -> Au {
Au(
(length * au_per_unit)
.min(ABSOLUTE_LENGTH_MAX as f32)
.max(ABSOLUTE_LENGTH_MIN as f32)
((length * au_per_unit) as f64)
.min(MAX_AU.0 as f64)
.max(MIN_AU.0 as f64)
.round() as i32
)
}